inherits as many qualities from its mother as from its father.
DETERMINATION OF SEX
Sex is determined after conception has taken place. At an early stage
of the embryo certain cells are set apart. These, later, form the sex
glands. Modern research claims to have discovered the secret of
absolutely determining sex in the human embryo, but even if these
claims are valid they have not as yet met with any general
application.
EARLY DEVELOPMENT
Some twelve days after conception, the female ovule or egg, which has
been impregnated by the male spermatazooen, escapes from the ovary
where it was impregnated, and entering a tube (Fallopian) gradually
descends by means of it into the cavity of the womb or uterus. Here
the little germ begins to mature in order to develop into an exact
counterpart of its parents. In the human being the womb has only a
single cavity, and usually develops but a single embryo.
TWINS